Cash register



April 14, 194-2. F WERNER 2,279,805

CASH REGISTER Filed May 11, 1958 6 Sheets-Sheet l FIG. 20 F2 3nventor Frank R. Werner ZMM April 14, 1942. F. R. WERNER CASH REGISTER Filed May 11, 1938 6 Sheets-Sheet 2 3nventor Frank R. Werner His Gttomeg April 14, 1942 WERNER 2,279,805

CASH REGISTER Filed May 11, 1938 e Sheets-Sheet 4 2 3 m i-f. A V J 220 a 264 .0 45s 4 59 156, ,[Efajfm 7 50 0 247 248'-- I :32

3 nventor Frank R. Wrner His Gttomeg A ril 14, 1942. R WERNER 2,279,805

CASH REGISTER Filed May 11, 1938 6 Sheets-Sheet 5 CASH REGISTER Filed May 11, 1938 6 Sheets-Sheet 6 Frank R. Werner Inventor His Attorney Patented Apr. 14, 1942 CASH REGISTER Frank R. Werner, Dayton, Ohio, assignor to The National Cash Register Company, Dayton, Ohio, a corporation of Maryland Application May 11, 1938, Serial No. 207,244

5 Claims.

This invention relates to improvements in cash registers, and more particularly to indicating mechanism for cash registers adapted to be actuated by difierentially settable members.

The mechanism, an improvement to that disclosed in United States Letters Patent 1,804,650, issued to Bernis M. Shipley, is disclosed as applied to a cash register of the general type described in United States Letters Patent 2,031,860, issued to Bernis M. Shipley, to which patents reference is made.

One of the objects of the invention is to provide an indicator or symbol carrier having lateral compactness without sacrifice of visibility as by reduction in size of the characters or symbols to be indicated.

Another object of the invention is to provide a positive alining mechanism for the symbol carriers.

Another object of the invention is to provide improved mechanism for shifting and rotating the symbol carriers on their axes.

Another object of the invention is to provide a novel mechanism for causing independent motion among a plurality of symbol carriers by the use of a single differentially settabl member.

Another object of the invention is to provide an improved construction forsymbol carriers of polygonal cross-section.

With these and incidental objects in view, the

invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

Of said drawings:

Fig. 1 is a front elevation, in diagrammatic form, showing portions of the key levers, universal bars for the key banks, transmission shafts, differential actuators, and indicator driving segments.

Fig. 2 is a vertical section taken on the line 2-2 in Fig. lthrough the-differential and the indicating mechanisms and viewed from the right.

Fig. 3 is a detail end view showing the driven mechanism for the clerk's indicator as viewed from the left side.

Fig. 4 is a vertical section of the mechanism for actuating the transaction indicator as viewed from the left.

Fig. 5 is a front elevation of part of the indicator mechanism showing the relation of the viewing apertures to the symbol carriers, and the driven elements of the transaction indicators.

Fig. 6 is a right side elevation, partly in sec tion, of the driven mechanism for shifting the polygonous symbol carriers on their supporting shafts.

Fig. 7 is a front elevation of the alining mechanism for the polygonous symbol carriers, and of the mechanism for shifting said carriers.

Fig. 8 is a right side view of the cam for controlling the alining mechanism for the polygonous symbol carriers.

Fig. 9 is a right side view of the rack and pinion for driving the shifting and alining mechanism for the polygonous symbol carriers, and the full stroke mechanism.

Fig. 10 is a top plan View of the indicator mechanism.

Fig. 11 is a front elevation of the indicator mechanism, with certain parts broken away.

Fig. 12 is a front view of the mechanism for actuating the five cent actuator by the keys assigned to values representing uneven multiples of five.

Fig. 13 is a side view of the mechanism shown in Fig. 12.

Fig. 14 is a detail of part of the key coupler as seen from above.

Fig. 15 is a vertical section through an amount symbol carrier showing its internal construction.

Fig. 16 is a top plan view of an amount symbol carrier.

Fig. 17 is a cross sectional view of an amount symbol carrier taken on line I1l'|, Fig. 15, and looking in the direction of the arrows.

Fig. 18 is a detail of the segments driving the cents indicator for front reading and the lateral transmission shaft for the cents indicator for rear reading.

Fig. 19 is a detail of the segments driving the dollar indicator for rear reading.

Fig. 20 is a plan view of the keyboard and illustrates one arrangement of amount keys and special keys.

Fig. 21 is a perspective diagrammatic view of a portion of the mechanism for setting the clerks indicating mechanism.

General description The novel indicator mechanism is shown in this disclosure as applied to what is known in the art as the key lever operated type of cash register.

The particular cash register construction shown has a keyboard accommodating amounts up to and including $3.95 (the keys for values below the even dollars being in five cent graduations), two clerks classifications, and two transaction classifications, namely paid out and no sale. No key representing cash is provided as a cash entry may be made by merely depressing a clerks key and the proper amount keys.

The indicator mechanism to be described may be placed on cash registers of other construction having equivalent differential action as will be apparent.

The disclosed cash register is equipped with a key coupler, differential members controlled by the keys, auxiliary differential members providing for a minimum movement of the indicator parts thus eliminating resetting the indicators to zero for each new setting thereof, and transmission elements. These various elements, though broadly old in the art, will be briefly explained for the purpose of showing how the indication is set according to the data entered into the machine.

The totalizers and printing mechanism are not shown because they are not necessary to an understanding of the invention although it is well known that in such machines the differentially settable members are used to control the totalizers and the printing elements, as well as the indicators.

The amount indicating mechanism, as stated,

is similar to that shown in United States Letters Patent 1,804,650, issued to Bernis M. Shipley and consists in general of indicators or symbol bearing elements of pentagonal cross-section mounted on shafts in such a manner as to be both rotatable and shiftable, allowing the selected symbols on different sections, differentially set, to become visible through viewing apertures. There are two groups of these amount symbol carriers provided, one for front reading and one for rear reading, each group displaying the same data. I The transaction and clerks symbols are carried on front and rear targets having a reading position directly above the amount reading apertures.

Improvements in the construction of both the target and the pentagonal symbol carriers, the mode of setting them and their alinement constitute the principal features of the invention 6 and will be described in detail.

In the Shipley Patent 1,804,650 to which reference was made, the symbols bearing the transaction data are arranged on carriers of polygonous cross-section rotatably mounted on a transverse axis located to one side of the vertically positioned carriers bearing the amount symbols. In the present invention, for the purpose of economizing lateral space the transaction symbols are carried on targets read through an aperture above that provided for reading the amount symbols. The targets are raised or lowered to reading position as the transaction demands.

Detailed description The framework of the machine consists of a plurality of vertical frame plates 60 (Figs. 1 and 2) running from the front to the rear of the machine supported and braced by a cross member 58, by a cross member 6| (Fig. l) and by vari- K cyboard As shown in Figs. 1 and 20, the keys 63 (Figs. 1, 2, 4, and 12) are arranged in five groups, the two left-hand keys I and II (Fig. 1) being the clerk keys, the next two keys PO and NS being thetransactionkeys representing paid out and no sale, the next group of three keys 3, 2, and l representing dollars, the next group of eighteen keys representing five cents, and multiples of five cents. These groups are known as banks, each group differentially controlling a single differentially settable member, with the exception of the 5 cent key which has its own differential member, which member is also associated with and operated by those keys representing uneven multiples of five cents. The latter keys therefore each control two differential members.

The symbol indicating a cash sale, as will be shown, is always in evidence if neither the paid out or the no sale keys are depressed.

All of the keys 63 are pivotally mounted on a supporting rod 62 (Figs. 2, 4, and 12) which is secured in the frame plates 69. The forward ends of the keys, bearing designating tips, are adapted to be pressed down so as to cause the rear ends of the keys to rise, rod 62 acting as a center.

Key coupler A key coupler 64 (Figs. 2, 4, and 14) securely mounted on a shaft 65, which is journaled in the frame plates 60, rests across all of the keys and by its weight normally retains the keys in the position shown in Fig. 2. The key coupler also functions in the usual manner to provide a flexible keyboard whereby a number of keys may be conditioned to operate by being hooked thereto and the machine finally operated by complete depression of one of the keys hooked to the key coupler, whereupon the key coupler is rocked, carrying with it, to complete their action, all the keys thereon hooked. In registering a transaction involving a number of keys the operator depresses the keys one after the other to an intermediate position and the last key to be used is usually given a full movement which completes the operation of the machine, entering into it the data represented by all the keys depressed.

As a key 63 (Fig. 2) is partially depressed at the forward end, a counter-clockwise movement is given to it around rod 62 as a center. The key coupler 64 is given a similar counter-clockwise movement thereby rocking shaft 65. The rod 62 and shaft 65 are so positioned that continued movement causes the resilient edge 65 of the key coupler, which edge is actuated by springs 84, to engage beneath the shoulder 67 (Figs. 2 and 4) on the depressed key lever, and in front of the shoulders 61 of the undepressed keys. A full stroke mechanism, to be described, prevents the key coupler, through control of shaft 65, from returning to home position at this time. Keys subsequently partially depressed are hooked onto H the raised key coupler, such being made possible by the resilient edge 66. By means well known in the art, not described in this disclosure, only one key in a given keybank may be depressed at one transaction. Therefore, by providing individually mounted resilient edges 66 (Fig. 14) on the key coupler for each bank of flexible keys, the possibility of releasing a hooked key, by depressing another key in the same bank, is avoided. After all the desired keys have been hooked on the key coupler, any one of such keys may be used to force the key coupler to complete the first half of its oscillatory movement, after which the weight of the key coupler returns the keys to normal position completing the second half of the oscillatory movement of the key coupler, terminating that transaction.

Special constructions of the keys and key coupler may be provided. Thus any key may be provided with a notch 68 as shown in the transaction key PO (Fig. 4) preventing that key from being used to complete an oscillation of the key coupler. In the machine as illustrated here the clerks keys marked I and II and the transaction key P are the only ones so notched. When a clerks key is depressed the upward movement of the rear end of the key will continue until the lower, rear edge of the coupler (which portion is a rigid part of the coupler) strikes the rear wall of the notch 68 of the depressed clerks key thus preventing further depression of the key. This movement of the depressed key is sufficient to rock the coupler an extent sufiicient to raise the flexible tips of the coupler into efiective position with relation to the amount keys. The edge of the key coupler may be non-resilient as shown at 69 (Fig. 14) which prevents a clerks key in that bank from being hooked on unless it be the first depressed. Such key and key coupler construction is broadly old and well known in the art, and requires no further explanation.

Full stroke mechanism Near the right end of the key coupler shaft 65 is secured a lever I0 which is rocked first counterclockwise (as viewed in Fig. 9), as a key is depressed, and then clockwise, as the key returns to home position. This rocking motion of lever I0, caused by the oscillation of the key coupler, is used to turn drive shaft II one complete rotation for every machine operation by means of pinion I2 and rack I3, pivotally mounted on lever 10 by stud I8. On the counter-clockwise movement of lever In the rack I3 is forced upwardly and rearwardly with the teeth I4 of the rack 13 held in contact with the pinion I2 by means of nose 16 .1

bearing on a guide 11 against which it rests until the completion of the counter-clockwise motion of lever 10. During the first part of the countar-clockwise motion of the lever 10, the spring I5 tends to turn the rack I3 counter-clockwise around the stud I8, but before the counter-clockwise motion of the lever is finished the stud I8 passes the line of pull of spring and therefore the stud I8 as a center of rotation moves to cause the spring to try to turn rack I3 clockwise, which happens before nose I6 reaches the top of the forward slope of guide 11. As the nose I6 passes beyond the guide II it will snap over the end thereof under the action of spring 15 just as the coupler reaches the end of its counterturn in a counter-clockwise direction only and consequently requiring completion of every commenced operation of the machine.

Difierential mechanism The keys are divided, as described, into groups or banks, and each bank of amount keys controls a differentially settable member. The dollar keys control the dollars differentially settable member, the keys representing even multiples of 5 cents under a dollar control the tens of cents difierentially settable member, the 5 cents key controls the units of cents differentially settable member, and the keys representing odd multiples oi 5 cents, control both the units and the tens of cents differentially settable members.

Fig. 2 representing the tens of cents differential element and indicators will serve to illustrate the differential mechanism for all the key banks.

All of the keys 53 representing multiples of 5 cents, except the 5 cents key, each have a cam slot 94, open at the top end, and located and shaped so as to engage a universal bar 82 mounted on the tens of cents differentially settable member 93, as the front end of the key lever is depressed causing a counter-clockwise motion of the key around shaft 62. In addition to the bar 82 there is one universal bar I22, associated with the dollars key bank, long enough to accommodate all the keys in the dollar bank, and a bar 92 for the 5 cents key.

The cam slots for the tens of cents keys" representing amounts having the same digit in the decimal order of dimes, are shaped alike. Thus, the keys representing 10 cents and 15 cents, are shaped alike, and those representing cents and cents are shaped alike but diiferent from the 10 cent and 15 cent keys.

It is the purpose of the cam slots 94 of tens of cents bank, to set the universal bar 82, and an actuator 93, associated with the ten cent key bank, according to the tens digit of the value of the key depressed. To accomplish this result, the cam slots 94 are graduated so that the key of a lower value of dimes moves the universal bar 82 less than the key of next higher value of dimes. Thus the 10 cents and the 15 cents keys move the bar 82 one step, the 20 cents and 25 cents keys move the bar 82 two steps, the cents and the cents keys move the bar 82 three steps, etc. These graduations are illustrated diagrammatically by the dotted lines 9! in Fig. 2, said representation not showing the cam slots of all the keys, however. The actuator 93 is pivoted on cross member 6|, and is provided with a forwardly extending arm terminating in a toe 89, and a rearwardly extending arm bearing a series of teeth meshing with a pinion I03 (see also Fig. l) fastened on a shaft N34. The purpose of the actuator 83 is to provide a differentially settable member for controlling the setting of an indicator in. the manner hereinafter described.

The 5 cent key is provided with a cam slot 94, similar to the tens of cents key 53. The cam slot 94 of the 5 cent key is shaped to engage the bar 92 and rock the differentially settable member for the units of cents bank, five steps.

The cent key 63 is depressed to register a transaction involving 45 cents, and the depression of the 45 cent key moves the tens of cents universal bar to register i0 cents. A universal bail 83 (Fig. 12) is arranged so that each key 63, representing a number ending in 5 cents, operates the universal bar 92 (Fig. 1), as does the five cent key, just as though the operator had pressed the five cent key. This provides for registering 5 cents in addition to the number of dimes registered. The universal bail 83 has a raised portion 85 (Fig. 12) under each tens of cents key bearing the 5 cent symbol so that depression of such a key will cause a rocking of the bail 83 around shaft 62 as a center. To a right side piece 86 (Figs. 12 and 13) of the universal bail, is fastened a plate 81, shaped like the rear end of an amount key and having a cam slot 88 of they same shape as that of the 5 cent key. By this construction, the 5 cent key will remain stationary although the 5 cent universal bar is moved the same distance as though the 5 cent key had been depressed. The mechanism just described is broadly old and well known and is fully shown and described in United States Letters Patent No. 1,744,183, issued to E. J, Von Pein on January 21, 1930, and needs no further disclosure.

There is one universal bar for each key bank. It is the function of each universal bar to transmit the diiferential movement, given to it by its associated key lever cams, to its associated actuator.

Still considering the tens of cents key bank,

shown in Fig. 2, as an example, the universal bar 82 and the actuator 93 are moved, as a key is depressed, in a clockwise manner about the shaft 6I as a center. The amount of this angular movement is proportional to the tens digit value of the key depressed, so that upon completion of the first half of the operative cycle of the machine, the corresponding actuator 93 is moved to a position in accordance with the tens digit value of the key depressed.

The forwardly extending toe 89 (Figs 2) of the actuator 93 is adapted to be engaged by a latching pawl 90 pivotally mounted on rod 62. The pawl 90 is provided with a bail IOI contacting the lower edges of all the key levers in the tens of cents bank. A spring I02 retains the bail against the key levers 63 and in so doing holds the pawl 90 over the toe 89 thus locking the actuator 93 against chance movement. Depression of any key in the key bank causes the bail IOI associated with that key bank to rock counter-clockwise around shaft 62 as a center carrying with it pawl 90, releasing the actuator 93 for movement by the key lever cams. Each actuator is supplied with a similar latch.

Because the driven mechanism of the indicators is on the right side of the machine it is necessary to provide for lateral transmission of the differential motion of the actuators for each key bank.

In Fig. 1, the universal rod 82, representing the tens of cents bank of keys, moves the actuator 93 difierentially, which, through teeth, on a rearwardly extending arcuate arm, engaging the pinion I03 secured to the tens of cents bank transmission shaft I04 (Figs. 1 and 2) turns the shaft I04 differentially. The shaft I04 is journaled in forwardly projecting flanges 51 of the rear frame plate 59 of the machine and has mounted on it near the right end a pinion I05 which engages a segment I06 also rotatably mounted on the cross member 6|. In the forward portion of segment I06, is cut a cam slot I01 (Fig. 2) acting as a guide for a roller I08 mounted on one end of a link I09, whose other end is pivotally mounted at I I0 to a flange on the key coupler I54. The cam slot I01 is of sufficient length to accommodate the full movement of roller I08. At the full depression of a key, the key coupler 54 has raised the roller I08 to its highest possible point and at the same time the segment I06 has been differentially set through the pinion I05 causing a positioning of the cam slot I01 so as to difierentially position the roller I08 around the cross member 6| as a pivot point. Rotatably mounted on cross member H, to the left of the segment I06, is a segment II I having a pear shaped opening II 2 cooperating with rollerI08 to differentially set the segment III from its previous setting to the new setting with a minimum movement. The roller I08 is wide enough to ride in both cam slot I01 and opening H2. Since the position of segment I06 is differentially determined by the cam slot 94 engaging the universal bar 62, through pinion I03, shaft I04 and pinion I05, the slot I01 determines the position to which the roller I08 moves the segment III, as the roller I08 is guided upwardly in the slot I01. This upward guided movement of roller I08, causes the roller to wipe against either wall of the pear shaped opening II2 to move the segment III from its last position directly into its new position, as determined by the depressed key. The setting of segment III differentially sets the symbol carriers registering dimes, as will be described.

Each key bank except the 5 cent key bank which requires no lateral transmission has a similar mechanism to differentially set the indicator mechanism associated therewith.

The 5 cent key, and plate 81, through bar 92, set a differential actuator I I8 directly, which sets the associated minimum movement segment II9. A shaft I20 and a pinion I2I driven by differential actuator IIB transmit the differential motion of the actuator to the printing and accounting devices of the cash register printing and accounting devices which are not shown here. No lateral transmission of the differential motion is needed in the case of the 5 cent key as its minimum movement segment is in direct line with the indicator mechanism it drives.

The dollar keys through the universal bar I22 set a differential actuator I23 (Fig. 1), similar in outline to the actuators 93 and H8, and whose motion is transmitted through a pinion I24, shaft I25, pinion I26 and segment I21 to the minimum movement segment I28 which sets the dollar indication mechanism. The segments I21 and I28 are like segments I06 and III, respectively, and the segment I28 is adjusted under control of segment I21 by a roller like the roller I 08, in the same manner as roller I08 adjusts the segment III under control of the segment I06.

The transaction keys through a universal bar I29, differential actuator I30, pinion I3I, shaft I32, pinion I33, segment I34, and a minimum movement segment I35, transmit their differential setting to the transaction indicator mechanism in the same manner as the tens of cents keys set their indicator mechanism.

The clerks key bank contains two keys I and II. Key I does not operate any of the indicator mechanism, as the normal condition of said mechanism displays the symbol I making it necessary to change such showing only when a transaction by the II clerk is entered. The II key, through a stud I III, pinion I 42, transmission shaft I43, pinion I44, segment I45, and minimum movement segment I52, actuates the indicating mechanism in the same manner as the tens of cents keys set their indicator mechanism, so as to change the clerks symbol.

All of the above described differential mechanism is old in the art, and is given herein to show one method by which the hereinafter described indicator mechanism can be differentially controlled.

It will be noted that auxiliary supporting members I41, I48, I49, I50 (Fig. 1) are provided for certain of the universal bars, said supporting members being mounted similarly to the differential actuators and cooperate with them, and the universal bars with which they are associated, to form a rigid construction. Brackets I5I are provided where the differential actuators and supporting members are joined to the uni versal rods, said brackets engaging circumferential grooves in said universal bars to provide lateral rigidity.

Indicator frame Secured to'bent over ears on the top vertical frames 60 (Figs. 7, l0, and 11) that support the indicating mechanism, are cross pieces I55 forming the top of the indicator framework.

In Fig. 6 are shown transverse members I56, joined by angle brackets to the frames 60, on which bearing collars I51 are secured. The bearing collars are adapted to receive the turned ends of square shafts I9I, I92, I93, I94, I95, and I96 (Figs. 6 and 10) on which the amount symbol carriers, to be later described, are shiftably mounted. Shafts I9I, I92, and I93 (Figs. 10 and 11) support the amount symbol carriers for front reading, and the shafts I94, I95, and I96 (Fig. 10) support the amount symbol carriers for rear reading. The tops of shafts I9I, I92, I93, I94, I95, and I96 are journaled in the cross pieces I as shown in Fig. 10. On the lower ends of shafts I9I, I92, I93, I94, I95, and I96 are secured pinions I59 (Figs. 2, 6 and 11) which are driven differentially in a manner to be described.

Difierential setting of amount indicators 'As is customary in the cash register art, means is provided to display amounts on the indicators so that the reading of the digits is from left to right, requiring a converse order of the data .on the rear symbol carriers, as compared with the same data on the front symbol carriers. Symbol carriers I60 and I6I (Fig. 10) are set under control of the 5 cent key symbol carriers I62 and I63 are set under control of the 10 cent keys and symbol carriers I64 and I65 are set under control of the dollar keys.

As the minimum movement segments I06, I I9, and I28, which drive the symbol carriers, are not in alinement with the mechanism they drive, means has been provided to transmit laterally their differential motion to both the front and rear reading symbol carriers, which includes in the case of the 5 cent and dollar mechanism means to avoid interference with the intermediate 10 cent mechanism.

A sleeve I61 is rotatably mounted on a shaft I66 (Figs. 1, 2, and 11), journaled in the frames 60. The sleeve I61 has hubbed thereon a toothed segment I68, geared to the minimum movement II9 (Figs. 1 and 18). Also hubbed on sleeve I61 is toothed segment I69 which drives the pinion I59 securely mounted on the shaft I9I, and a toothed segment I10 (Figs. 1, l1 and 18), which drives a pinion I8I (Figs. 1 and 18) secured on a transmission shaft I82 journaled in the frames 60. On the left end of the shaft I82 is a pinion I83, which drives a toothed segment I84 (Figs. 1 and 11) hubbed to a sleeve I85 rotatably mounted on the shaft,I66, which bears on its right end a toothed segment I86, which drives the pinion I59 mounted on the shaft I94 (Fig. 10) which supports symbol carrier I6I for indicating the units of cents to the rear.

Also rotatably mounted on the shaft I66 (Fig. l) is a sleeve I81 to which is secured a pinion I88 (Figs. 1 and 11) engaged by the minimum movement segment III (Fig. 1) associated with the 10 cent key bank. Also securely mounted on sleeve I81 is a toothed segment I69 which drives the pinion I59 on shaft I92 (Fig. 10) which carries the 10 cent symbols displayed to the front, and a toothed segment I which drives the pinion I59 on shaft I95 which carries the 10 cent symbols displayed to the rear.

Also mounted on shaft IE6 is a sleeve I99 (Figs. 1 and 11) having secured thereon a pinion 200 driven by minimum movement segment I28 representing the dollar key bank. A toothed segment 2II securely mounted on the sleeve I99 drives pinion I59 on the shaft I93 (Fig. 11) which actuates the dollar symbol carrier I64. A toothed segment 2I2 secured on the same sleeve I99 actuates a pinion 2I3 secured to a shaft 2I4 journaled in the frames 60 of the indicators. On the same shaft 2I4, which acts as a lateral transmission means, is secured a pinion 2 I5 (Figs. 11 and 19) which actuates a toothed segment 2I6 secured on sleeve 2I1 mounted rotatably on shaft I66. On the right end of sleeve H1 is secured a toothed segment 2I8 which actuates the pinion I59 on shaft I96 (Fig. 10) which drives the symbol carrier, representing the dollar key bank, displaying to the rear.

In the above described fashion the differential settings of the minimum movement segments are transmitted to the shafts for rotating the front and rear symbol carriers, setting both to display the same data.

Polygonal symbol carriers The amount symbol carriers, best illustrated in Figs. 2, 6, 15, 16, 17, each consists of a tubelike shell 2I9 and 220 (Fig. 15) each having a pentagonal cross-section with one-half of the shell offset axially from the other half of the shell to the maximum degree, as illustrated in Figs. 15 and 1'1. The shell consists of what will be termed an upper half 2I9 and a lower half 220 (Fig. 15) divided by a waist 22I. In this disclosure the upper half of the shell and the lower half of the shell each has five regular faces, making ten faces in all, to accommodate the ten digits in the decimal system of numbers. It is apparent that shells can be made having any number of sides or faces to accommodate the data sought to be indicated.

On the inside of each shell at the waist is aweb 222 (Figs. 15 and 17) having radial members 223 bent to engage the included angles between the faces, the radial members being bent upwardly and downwardly, alternately, to fit above and below the waist 22I (Fig. 15). There are ten radial members 223, five of which cooperate with the angles between the faces of the up per half'of the shell and five of which cooperate with the angles between the faces of the lower half of the shell.

A hub 224 (Figs. 15 and 17) having a square axial opening 225, a flange 208, and a tenon 201, which tenon is inserted in a circular hole in the web 222, is fastened to the web by means of a collar 2H1 slipped over the protruding end of the tenon 201, which is rounded over the collar. A

tube 229, having three ears 239, which are inserted into clearance and positioning notches in the flange 298 and in the circumference of the hole in the web 222, is fastened to the assembled hub and web by bending the protruding ears 239 as shown in Fig. 17. The cooperation of ears 230, the notches in flange 265, and the notches in the circumference of the hole in the web 222 serves to position the square hole in the hub 224 at a determined orientation so that one of the sides of the hole is parallel to the plane of one of the upper faces of the symbol carrier and another side of the square hole is parallel to the plane of one of the faces on the lower part of the symbol carrier.

Covering the top opening of each symbol carrier is a cap 226 (Figs. 15 and 16) having a clearance hole 221 in the center thereof for its supporting shaft. Each cap 226 has ears 228 (Figs. 15 and 16) alternately engaging the inside and outside of the shell 2I9 for fastening it against radial displacement. In order to provide against the caps 226 being displaced vertically, each is connected with the rigid center web 222 by the tube 229 (Fig. 15) having three ears 230 (Figs. 16 and 17) on each end, which ears are inserted through slots, provided for that purpose in the web and cap, and bent over. staked in the cap 226 is a collar 233 having a circular clearance hole for the shaft sufficiently small to prevent wobbling of the shell while being shifted or rotated.

This forces a systematic mounting of the symbol carriers, simplifying the assembly.

As seen in Figs. 2 and 6 the digits are shown placed on the shell symbol carriers so that starting at placed on the one face on the upper half of the shell, the 1 is placed on an adjacent lower face 36 degrees from the face on which the 0 is placed. The 2 is placed on the upper half of the shell on the face '72 degrees from the 0 face. The remainder of the figures are placed alternately in the same fashion around the shells. It is to be noted that with the particular front and rear symbol setting transmission used herein, the symbols to be displayed to the front progress around the shell in a direction opposite to that for those shells having symbols to be displayed to the rear, as all the pinions I59 and their corresponding segments may then have their teeth cut in the same sense, which causes shafts I9I, I92, and I93 to turn in a direction opposite to shafts I94, I95, and I95. The sequential positioning of the symbols on the shells is necessary in order to cooperate with the sequentially-arranged key lever cam slots 9|. It is apparent that a different sequence of cam slots would necessitate a difierent positioning of the symbols.

Aperture plates 293 and 294 (Figs. 2, 5, l0, and 11) are provided for the front and back of the indicator respectively, which cover the shell symbol carriers so that but one face on each is visible at a given instant. Aperture 235 (Figs. and 11) displays the dollar indication, aperture 236 dis plays the cent indication, and aperture 231 displays the 5 cent indication. On a pillar 238 between the apertures 235 and 236, placed so as to be permanently visible, is the decimal punctuation mark.

As the apertures 235, .236, and 231 for viewing the symbols are only half the height of the symbol carriers, and as the shell symbol carriers in normal position display the upper numbers,

means has been provided to shift the symbol car- 7 riers upwardly on their shafts when necessary to display a number on the lower half.

Amount indicator shifting mechanism The symbol carriers are normally supported in the positions shown in Fig. 2 where all the apertures reveal the digits on the upper half of the symbol carriers.

A shaft 239 (Figs. 2, 6, and '1), to which are secured pinions 240 and MI (Fig. 7), has either end projecting into vertical bifurcations 242 (Fig. 6) in the vertical indicator frames 60 so as to allow the shaft to be raised and lowered therein. Secured to the frames 69 are racks 243 and 244 cooperating with the pinions 240 and MI respectively to keep shaft 239 horizontal while being raised or lowered, though the actuating force is applied only at the right end of the shaft, through a link 245 to which the shaft 239 is pivotally connected. Up and down movement of this link, supplied by a lever 246 (Figs. 6 and 7), moves shaft 239 likewise. The lever 246 is securely mounted to a pinion 241 (Fig. 7) rotatably mounted on stud 248 supported by one of the frames 69. The pinion 241 is rotated once for each machine operation by a pinion 249 secured to the drive shaft 1I before described.

Depending from shaft 239 (Fig. '1) are two links 26I and 262 joined together by twin yokes 263 and 284 (Figs. 2, 6, and '1). At the juncture of each link with the yokes, a guide stud 265 (Fig. 7) is provided to travel in the aforementioned vertical bifurcation 242 in the frames 60 so as to prevent the yokes from having any but a vertical motion. Yokes 263 and 264 each have three upwardly projecting arms 266, 261 and 268, and 269, 219 and 21!, respectively, for supporting and lifting the amount symbol carriers on their shafts.

The arms 256, 291, and 268 (Fig. '1) support the symbol carriers for front display, and the arms 269, 219, and 21I support the symbol carriers for rear display. These arms have their upper ends bent horizontally each of which has a clearance slot for one of the shafts I9I, I92, I93, I94, I95, and I96. The arms are of such length that they extend through the openings in the bottom of their associated shell symbol carriers,

. the bent over ends acting as bearing points for the Webs 222 of the symbol carriers when in normal or down position.

Once each machine operation the six symbol carriers are thus lifted by the raising of the shaft 239 as has been explained.

The mechanism for selecting which symbol carriers shall be retained in the raised position is closely related to the alining mechanism for the amount indicators and will be discussed next.

Symbol carrier selecting and alining mechanism A train of mechanism, including a cam 28I,

actuates the slide 212 in a manner hereinafter described. Due to closeness in timing the spring 215 is provided to take up any lost motion or slack in the mechanism for moving the slide 212 to the right. The mechanism whereby'the cam 20I actuates the slide 212 is as follows:

Secured to the underside of slide 212 is a bracket 216 (Figs. 6, 7, and having a bifurcation engaging a stud 211 (Fig. '7) on a bell crank lever 218, mounted pivotally on stud 219 extending from a frame supported bracket 280. Clockwise movement of bell crank lever 218 allows movement of Slide 212 to the right in response to spring 215 and counter-clockwise movement of bell crank lever 218 causes movement of slide 212 to the left. Slide 212 is shifted from its normal position to the left and back to normal during the first half of each machine operation by means of a face grooved cam 28I (Figs. '7 and 8) which is secured on the drive shaft 1I, before described. Cam 28I makes one rotation each machine operation and through cam follower 282 mounted on lever 233 (Fig. 8) pivoted at one end to transverse shaft I32 and at the other end to link 285 (Figs. '7 and 8) causes said lever to oscillate once each machine operation. The other end of link 285 is pivoted to bell crank lever 218.

Secured to the top of each of the shafts I9I, I92, I93, I94, I05, and I96 is a ten toothed alining wheel 29I which, cooperating with studs 206 (Figs. 6, 7, and 10) on arms 213 (Figs. 7 and 10), projecting from the slide 212, of which there is one for each wheel, lock and aline the symbol carriers when the slide 212 is in normal position or the right-hand position. The shifting of slide 212 to the left unlocks the symbol carriers for the differential setting of the symbol carriers after which the slide returns to the right locking the symbol carriers, as far as their rotation is concerned, in the new position. All this occurs during the first half of the machine operation.

Formed integral with the cap piece 226 of each shell symbol carrier are five upwardly projecting hooks 281 (Figs. 10, 15, and 16) adapted to engage laterally projecting fingers on downwardly projecting arms 288 (Figs. 6, 7, and 10) of slide 212, one of which is provided for each shell symbol carrier. The h'ooks 281 are so positioned on the caps that the engagement of an arm 28B, and its associated hook 281, can occur only when one of the faces on the lower half of that particular symbol carrier is in position to be displayed through the aperture plate. The slide 272 moves to the left before the lifting of the symbol carriers which are thereupon released for shifting and rotating. Before the shell symbol carrier lifting mechanism is again lowered, the slide 212 moves to the right, and if any of the faces on the lower half of the symbol carriers are in position to be displayed, that symbol carrier will have one of its hooks 281 engaged by an arm 288 which holds that particular symbol carrier raised until the beginning of the next machine operation. If a face on the upper half of a symbol carrier is turned so as to be displayable the symbol carrier will not be held in the raised position but will drop so as to render that upper face visible through the aperture. In Fig. 6 the right symbol carrier is shown in the raised position where it is retained by its hook.

Transaction indicator The disclosed machine will indicate three kinds of transactions, namely, cash, paid out, and no sale. There are two transaction keys, paid out and no sale. If no transaction key is used, the indicator for a cash transaction will be in view.

The paid out symbol is marked on the aperture plate 233 in the position shown in Fig.5. If

either a cash or a no sale transaction is to be indicated, that symbol, marked on a separate target, is placed in such a position that it covers the paid out symbol and is itself displayed. A screen 25I (Fig. 2) placed in front of each aperture plate screens all of the aperture plates from view except the apertures 235, 236, and 231, and the space occupied by I paid out as seen in Fig. 5.

The no sale target 239 (Figs. 4, 5, 10, and ll) and the cash target 290 are U shaped, the closed ends encircling the left side of the indicator mechanism, one free end of each extending horizontally before the front aperture plate and the other free end of each extending horizontally before the rear aperture plate. The front and rear arms bear the same symbols.

To the closed ends of the no sale target are secured two embracing flanges 302 (Figs. 4 and 11) which are hooked around the left frame 60 connected to it by a stud 300 which travels in a bifurcation 305 in the said left indicator frame 60. The cash target 290, mounted on the same frame plate 60 below target 289 in the same mannor, is actuated by a link 306 pivotally connected 1 to it by a stud 301.

The target 290 is shown in Fig. 4 in its home position covering the paid out symbol on the aperture plate. In a paid out transaction the cash target 290 drops below the apertures 235 in the aperture plate revealing the paid out symbol marked on said plate. During this operation the target bearing the no sale symbol drops a distance about equal to its width but not sufficiently to come into viewing position. If the no sale key is next depressed the cash target 290 stays below the apertures, as in paid out transactions, and the no sale target drops into viewing position. Due to the minimum movement segment, the targets are not returned to home position before being differentially set.

The links 303 and 306 are connected by studs 308 and 309 respectively, to a lever 3I0 rotatably mounted on shaft I66. Also rotatably mounted on shaft I66 is a pinion 3 (Fig. 11) which is connected to lever 3I0 by a pin 3I2 (Figs. 4 and 11) and to an adjustment plate 3I3 screwed to said lever. As the pinion 3 turns in response to the depression of a transaction key, which imparts motion thereto by means of cam slots 68 (Figs. 1 and 4), universal bar I29, actuator I30, pinion I3I, transmission shaft I32, pinion I33, segment I34 and minimum movement segment I35, the lever 3I0 is turned differentially. there are three possible positions of this lever in the construction disclosed, that shown in Fig. 4 being the home position and displaying the cash target. A clockwise movement of lever 3I0 of approximately 45 degrees will draw the target 290 to below the aperture openings 235, which movement is supplied through stud 309 and link 306. Stud 309 is slidably mounted in a slot 3I4 in lever 3I0, but is held in the outer end of said slot by cam plate 3I5 secured to the frame work of the machine. Cam plate 3I5, to hold stud 309 in the outer end of slot 3I4, has an arcuate edge 3I6 which has shaft I66 as a center. After 45 degrees of clockwise motion of lever 3I0 the stud 309 has reached the lower end of the edge 3I6 whereupon stud 309 is permitted to travel in slot 3, and is made to do so as a guide stud 299 on the target 290 has then reached the bottom of the bifurcation 3I1 in the left frame 60 of the indicator mechanism. Further clockwise motion of lever 3I0 for 45 degrees is permitted, causing link 306 to turn clockwise around stud 301 as a center without moving target 290. During the last 45 degrees of clockwise motion of lever 3I0 the cash target remains in its position below the apertures 235.

Lever 3I0 rotating clockwise the first 45 degrees also lowers the no sale target 289 but not sufficiently to make it visible. The second 45 degrees of clockwise rotation brings target 289 to visible position covering the paid out symbol. This motion to target 289 is supplied by lever 3I0 through stud 308, link 303 and stud 304 as described. Motion of lever 3I0 in a counterclockwise direction reverses the motions of the targets. As the lever 3I0 may be in any one of the three positions when a transaction key is depressed the minimum movement segment I35 determines in which direction said lever 3I0 will be rotated.

To insure that said no sale target will remain in place in either of its upper two positions after the key coupler has returned to normal position, leaving the minimum movement device subjected to movement by the gravitational pull on the target mechanism, a retaining member 3I8 (Figs. 4, 5, and 10) is fastened to the left end of the alining slide 212. One finger 3I9 (Fig. 5) of the retaining member engages stud 304 when in the uppermost position as shown. Another finger 320 of the hook engages stud 304 when in the intermediate position indicating a paid out transaction. During the setting of the transaction indicators, slide 212 (Fig. is moved to the left position leaving stud 304 free. The slide 212 moves to the right before the key coupler commences its return motion thus locking this target against displacement by gravity. The lowest or no sale positioning needs no such lock since when the stud 299 rests in the bottom of bifurcation 3I1 the lever 3I0 is stopped from rotation, and therefore the link 303 is stopped in a position to display the no sale indicator 289 at the viewing point. The locking of target 289 in either of the upper two positions also locks target 290, through the connections including links 303 and 306.

To hold the indicators in the cash position, which is the usual register transaction, even when the locking action of fingers SI!) and 320 is ineffective, a roller, carried by a spring actuated lever 622 (Fig. 4), engages a notch on lever 3I0 fielding it yieldingly against turning. A spring 33I fastened to the other arm of the bell crank lever supplies the resilient force suificient to temporarily hold the transaction targets in the uppermost position.

Clerks indication Provision for two clerks identification symbols have been made. On all the transaction indication symbols there is an accompanying symbol I indicating a transaction by the clerk having that identifying symbol. Therefore the key bearing the symbol I does not need to, and does not, control any indicating mechanism.

If clerk II operates the register, using the II key, a target bearing the symbol II is lowered in front of the I symbol that would otherwise be visible.

Key II (Figs. 1 and 21) through the stud I4I,

segment I40, pinion I42, shaft I43, pinion I44, segment I45, and minimum movement segment I52, differentially positions a segment 323 rotatably mounted on shaft I66. Hubbed to the segment 323 is a lever 324 (Figs. 1 and 3) which is pivoted to a link 325 (Fig. 3) whose upper end is pivoted to the closed end of a U shaped clerks II target 326 (Figs. 3, l0, and 11) one free end of which extends horizontally before the front aperture plate and the transaction indicators, and the other free end of which extends horizontally before the rear aperture plate and transaction indicators in the same manner. As shown in Fig. 11, the free ends of said clerks symbol carrier are just long enough to cover the symbol I on the symbol with which it is alined.

A guide bracket 321. (Figs. 3, l0, and 11) secured to the bent over top of the left indicator frame 60 (Fig. 11) has a downwardly projecting portion acting as a support and guide for clerk's target 326. The target 326 has secured thereto flanges 328 (Fig. 11) which embrace the guiding portion of the guide bracket 321. The guide bracket 321 also contains a vertically positioned slot 329 (Fig. 3) into which studs 330 project, limiting the possible vertical motion of the target.

Lever 324 and link 325 are shown in Fig. 3 in rest position. As lever 324 is turned differentially by pinion 323 in response to depression of the II key the toggle formed by lever 324 and link 325 is broken causing the target 326 to lower and cover the symbol I on the transaction symbol that is visible at that time. The II symbol is shown, in its normal position in Fig. 11 hidden from view.

To prevent the symbol II from falling from normal position to viewing position due to gravity, a, hook 34I (Fig. 3) is provided on the lower end of link 325 which engages a stud 342 on lever 324 thus causing the target to lock itself by its own weight, in ineffective position.

Whenever the II indicator has been moved to viewing position, by operating the register under control of the II key, it will remain in viewing position until the next machine operation which does not invo ve the use of the II key. On machine operations not involving the use of the II key, the segment I40 (Fig. 21) is held in home position on one side by a plate I15 attached to the key lever and on the other side through pinion I 42 and shaft I 43 which is kept from moving in a retrograde direction through home position by being connected by pinion I60 to a toothed segment I18 rotatably mounted on shaft 6|, which bears against the alining bar I11 in home position. Alining bar I11 is secured between two auxiliary frame plates, only one plate 56 being shown. The Clerks differential system being held in home position, the oscillation of the key coupler will, through link I19, position the segment I52 and the segment 323 to home position, which raises the II indicator out of sight, exposing the I symbol to view.

Operation By pressing an amount key only, the indication will show a cash transaction by the I clerk thus eliminating the necessity for having mechanism for indicating a cash transaction by any clerk, or indicating any transaction by the I clerk.

Other than a cash transaction requires the depressing of the appropriate key for its indication.

A transaction by the II clerk requires the depressing of that key in addition to the proper transaction key.

There is an indicator for each bank of keys. The failure to operate a key in the clerks bank will result in the symbol I showing; failure to operate a key in the transaction bank will result '11 the symbol cash showing; failure to operte a key in the dollar bank will result in a blank ace showing as the place where the zero ordi- .arily would show is left blank, inasmuch as a zero to the left of the decimal point has no significance where no provision is made for registering tens of dollars: failure to depress a key in either the dimes or five cent key banks results in zero showing therein unless the dimes bank operates the five cent coupler.

The indication of the last transaction remains in evidence until the next transaction is commenced.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed,

for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow.

What is claimed is: I

1. In an indicating mechanism, the combination of a plate bearing a symbol; a supporting member; an upper target slidably mounted on the supporting member; a lower target slidably mounted on the supporting member which at rest position covers that part of the plate bearing the symbol; a common differentially settable member associated with both targets; a means connecting the lower target with the difierentially settable member; a means connecting the upper target with the differentially settable member; and means for setting the differentially settable member so that the lower target is moved from normal position to uncover the symbol on the plate or to be replaced in position by the upper target.

2. In an indicating mechanism, the combination of a plurality of movable symbol carriers each of which bears a single symbol; a plate having a viewing aperture: a common differentially settable means associated with the symbol carriers; and means continuously connecting each symbol carrier to the differentially settable means so as to move each symbol carrier to and away from viewing position at different times during the complete motion of the differentially settable means.

3. In an indicating mechanism, the combination of a differential! settable means settable to a plurality of positions; a plurality of movable symbol carriers; and means connecting the diiferentially settable means and each symbol carrier so that each symbol carrier has an individual motion both as to velocity and distance.

4. In an indicating mechanism for a machine of the class described, the combination of a differentially settable member; two symbol carriers each having a display position and a, concealed position; and means continuously connecting each of the symbol carriers to the differentially settable means whereby one of the symbol carriers is moved continuously by the moving differential means and the other symbol carrier is moved discontinuously by the same movement of the difierential means.

5. In an indicator mechanism for a machine of the class described, the combination of a differentially settable member; two movable symbol carriers having the same operative plane; a cam plate; a link pivotally connecting one symbol carrier to the differential member so as to be moved directly thereby; and a second link pivoted at one end to the second symbol carrier and at the other end slidably mounted in a slot in the differential member by means of a stud said stud also cooperating with the cam plate to interrupt the motion of said second symbol carrier before completion of the motion of the differential member whereby the first-mentioned symbol carrier is invariably moved by movement of the diflerential member and the second symbol carrier is moved only during a portion of the movement of the differential member.

FRANK R. WERNER. 

